Dogcows Code - chaz/openbox/blob - scripts/historyplacement.py

   1 ##############################################################################
   2 ### The history window placement algorithm. ebind historyplacement.place   ###
   3 ### to the ob.EventAction.PlaceWindow event to use it.                     ###
   4 ##############################################################################
   5
   6 import windowplacement # fallback routines
   7
   8 ##############################################################################
   9 ### Options for the historyplacement module (Options in the                ###
  10 ### windowplacement module also apply!):                                   ###
  11 ###                                                                        ###
  12 # ignore_requested_positions - When true, the placement algorithm will     ###
  13 ###                            attempt to place windows even when they     ###
  14 ###                            request a position (like XMMS).             ###
  15 ###                            Note this only applies to normal windows,   ###
  16 ###                            not to special cases like desktops and      ###
  17 ###                            docks.                                      ###
  18 ignore_requested_positions = 0                                             ###
  19 # fallback - The window placement algorithm that will be used when history ###
  20 ###          placement does not have a place for the window.               ###
  21 fallback = windowplacement.random                                          ###
  22 # confirm_callback - set this to a function to have the function called    ###
  23 ###                  before attempting to place a window via history. If   ###
  24 ###                  the function returns 'true' then an attempt will be   ###
  25 ###                  made to place the window. If it returns 'false', the  ###
  26 ###                  fallback method will be directly applied instead.     ###
  27 confirm_callback = 0                                                       ###
  28 ###                                                                        ###
  29 # filename - The name of the file where history data will be stored. The   ###
  30 ###          number of the screen is appended onto this filename.          ###
  31 filename = 'historydb'                                                     ###
  32 ###                                                                        ###
  33 ##############################################################################
  34
  35 import otk
  36 import ob
  37 import os
  38 import string
  39
  40 _data = []
  41
  42 class _state:
  43     def __init__(self, appname, appclass, role, x, y):
  44         self.appname = appname
  45         self.appclass = appclass
  46         self.role = role
  47         self.x = x
  48         self.y = y
  49     def __eq__(self, other):
  50         if self.appname == other.appname and \
  51            self.appclass == other.appclass and \
  52            self.role == other.role:
  53             return 1
  54         return 0
  55
  56 def _load(data):
  57     global _data
  58     file = open(os.environ['HOME']+'/.openbox/'+filename+"."+str(data.screen),
  59                 'r')
  60     if file:
  61         # read data
  62         for line in file.readlines():
  63             line = line[:-1] # drop the '\n'
  64             try:
  65                 s = string.split(line, '\0')
  66                 state = _state(s[0], s[1], s[2],
  67                                string.atoi(s[3]), string.atoi(s[4]))
  68
  69                 while len(_data)-1 < data.screen:
  70                     _data.append([])
  71                 _data[data.screen].append(state)
  72
  73             except ValueError:
  74                 pass
  75             except IndexError:
  76                 pass
  77         file.close()
  78
  79 def _save(data):
  80     global _data
  81     file = open(os.environ['HOME']+'/.openbox/'+filename+"."+str(data.screen),
  82                 'w')
  83     if file:
  84         while len(_data)-1 < data.screen:
  85             _data.append([])
  86         for i in _data[data.screen]:
  87             file.write(i.appname + '\0' +
  88                        i.appclass + '\0' +
  89                        i.role + '\0' +
  90                        str(i.x) + '\0' +
  91                        str(i.y) + '\n')
  92         file.close()
  93
  94 def _create_state(data):
  95     global _data
  96     area = data.client.area()
  97     return _state(data.client.appName(), data.client.appClass(),
  98                   data.client.role(), area.x(), area.y())
  99
 100 def _find(screen, state):
 101     global _data
 102     try:
 103         return _data[screen].index(state)
 104     except ValueError:
 105         return -1
 106     except IndexError:
 107         while len(_data)-1 < screen:
 108             _data.append([])
 109         return _find(screen, state) # try again
 110
 111 def place(data):
 112     global _data
 113     if data.client:
 114         if not (ignore_requested_positions and data.client.normal()):
 115             if data.client.positionRequested(): return
 116         state = _create_state(data)
 117         try:
 118             if not confirm_callback or confirm_callback(data):
 119                 print "looking for : " + state.appname +  " : " + \
 120                       state.appclass + " : " + state.role
 121
 122                 i = _find(data.screen, state)
 123                 if i >= 0:
 124                     coords = _data[data.screen][i]
 125                     print "Found in history ("+str(coords.x)+","+\
 126                           str(coords.y)+")"
 127                     data.client.move(coords.x, coords.y)
 128                     return
 129                 else:
 130                     print "No match in history"
 131         except TypeError:
 132             pass
 133     if fallback: fallback(data)
 134
 135 def _save_window(data):
 136     global _data
 137     if data.client:
 138         state = _create_state(data)
 139         print "looking for : " + state.appname +  " : " + state.appclass + \
 140               " : " + state.role
 141
 142         i = _find(data.screen, state)
 143         if i >= 0:
 144             print "replacing"
 145             _data[data.screen][i] = state # replace it
 146         else:
 147             print "appending"
 148             _data[data.screen].append(state)
 149
 150 ob.ebind(ob.EventAction.CloseWindow, _save_window)
 151 ob.ebind(ob.EventAction.Startup, _load)
 152 ob.ebind(ob.EventAction.Shutdown, _save)
 153
 154 print "Loaded historyplacement.py"